It’s so sweet! I love the quilting detail. I’m sure your niece and nephews will love it. The advent calendar was one of my favorite things about Christmas when I was a kid.
I actually tried sewing one this year but didn’t get my act in gear early enough. Since I was rushing, it wasn’t turning out the way I envisioned, so I abandoned it.

It looks wonderful! What a great project to practice machine binding on. I machine bound a quilt for myself and it came out pretty terrible but once I threw it on the bed I realized you can only see if you look closely so it’s totally a flaw I can live with on that .